windows-nt/Source/XPSP1/NT/shell/lib/generic/countedobject.h

47 lines
1.6 KiB
C
Raw Normal View History

2020-09-26 03:20:57 -05:00
// --------------------------------------------------------------------------
// Module Name: CountedObjects.h
//
// Copyright (c) 1999-2000, Microsoft Corporation
//
// Base class that implements object reference counting
//
// History: 1999-08-17 vtan created
// 2000-02-01 vtan moved from Neptune to Whistler
// --------------------------------------------------------------------------
#ifndef _CountedObject_
#define _CountedObject_
#include "DynamicObject.h"
// --------------------------------------------------------------------------
// CCountedObject
//
// Purpose: This class is a base class that implements object reference
// counting. The default constructor is protected to disable
// instantiating this object unless subclassed. The reference
// count is private because subclasses really shouldn't need to
// know about the reference counting.
//
// History: 1999-08-17 vtan created
// 2000-02-01 vtan moved from Neptune to Whistler
// --------------------------------------------------------------------------
class CCountedObject : public CDynamicObject
{
protected:
CCountedObject (void);
virtual ~CCountedObject (void);
public:
void AddRef (void);
void Release (void);
LONG GetCount (void) const;
private:
LONG _lReferenceCount;
bool _fReleased;
};
#endif /* _CountedObject_ */